Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 879 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a battery torch
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
3. 3.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
4. 4.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
7. 7.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
11. 11.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) carries the data (d) shows data to you
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) an app-controlled bulb
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
15. 15.What does the cloud server do? (a) carries the data (b) reads values, decides (c) acts on a command (d) stores data online
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain wall switch (d) a Wi-Fi doorbell camera
18. 18.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the board reads it (d) the app shows it
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
22. 22.What does the actuator do? (a) shows data to you (b) reads values, decides (c) carries the data (d) acts on a command
23. 23.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
24. 24.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) cloud server (d) phone app
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
26. 26.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
30. 30.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) Wi-Fi (d) phone app
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
33. 33.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) sensor (d) phone app
34. 34.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
36. 36.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
37. 37.What does the phone app do? (a) carries the data (b) shows data to you (c) stores data online (d) measures the real world
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
39. 39.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?

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